CN1417092A - Fulmination preventer for feeding bin - Google Patents
Fulmination preventer for feeding bin Download PDFInfo
- Publication number
- CN1417092A CN1417092A CN 01127598 CN01127598A CN1417092A CN 1417092 A CN1417092 A CN 1417092A CN 01127598 CN01127598 CN 01127598 CN 01127598 A CN01127598 A CN 01127598A CN 1417092 A CN1417092 A CN 1417092A
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- China
- Prior art keywords
- sensor
- controller
- preventer
- feed bin
- bin
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Abstract
The deflagration preventer for bin consists of sensor, controller connected with the sensor and executor connected to the controller, and is characterized by the sensor being pressure sensor and the executor comprising inhibitor storage tank, cutting valve connected with a solenoid valve parallelly and nozzle. In the pipeline, there is normally opened solenoid valve mounted. The preventer has the advantages of short response time and less drift, and is suitable for use in large polyolefine bin of bundreds cubic meters.
Description
The present invention relates to a kind of device that prevents the feed bin detonation.
In manufacture of polyolefins, feed bin one of the device that is absolutely necessary.Because the material (for example polyolefine powder) of seasoning belongs to combustible dust in the feed bin, it with air-blending after be in the explosive limits scope, run into ignition source (as electrostatic discharge etc.) and blast accident very easily take place, gently then inner flash burn, generation melting charge piece; Heavy then dodge quick-fried catching fire, damage feed bin, can't ordinary production, cause huge directly and indirect economic loss.A lot of deflagration accident havings once took place in petrochemical enterprise in China polyolefin big material bin in recent years.In case it is quick-fried that feed bin dodges, existing measure and device all can not in time play a role and burn feed bin.At present both at home and abroad adopt powder to do the more of inhibitor (as powder extinguishing agent etc.) extinguish and anti-explosion to the feed bin of several cubic meters, dozens of cubic meter, when adopting powder datonation-inhibition, in feed bin, place sensor, this sensor can fire signal at the initial stage of detecting, and be sent to controller, this controller just sends instruction to actuating unit, with the generation of avoiding firing after receiving this signal.At present used have modes such as temperature-sensitive, sense cigarette, sensitization to detect to fire signal, and its shortcoming is that the sensor response time is long, and drift greatly, and the easy contaminant sensor of polyolefin powder.
The purpose of this invention is to provide a kind of device that prevents the feed bin detonation, it can remedy the above-mentioned deficiency of prior art.
A kind of device that prevents the feed bin detonation has sensor, and this sensor is connected with controller, and this controller also is connected with actuating unit, it is characterized in that described sensor is a pressure sensor, and described actuating unit is made up of inhibitor basin, cutting valve and shower nozzle.
Advantage of the present invention is that response time is short, and drift is few, is applicable to the polyolefin big material bin of hundreds of cubic meters.
Below by embodiment the present invention is described.
Accompanying drawing is a structural representation of the present invention.
Device of the present invention has a pressure sensor 1, and it is connected on the input end of controller 2, and a basin 3 that inhibitor nitrogen is housed is arranged, and it is communicated with shower nozzle 5 by pipeline, and cutting valve 4 is housed on this pipeline, and this cutting valve 4 is connected on the mouth of controller 2.In case have in the feed bin and dodge outburst and give birth to, sensor 1 detects boost pressure signal rapidly and signal is passed to controller 2, controller 2 just sends instruction when pressure climbing speed and pressure threshold value reach simultaneously, open the cutting valve by shower nozzle 5 to feed bin 8 ejection N
2Thereby, suppress to dodge quick-fried.With the electromagnetic valve 6 that cuts valve 4 parallel connections is to use for M/C; Normally open solenoid valve 7 is to be convenient to turn-off this pipeline.
This device W-response time has only a few tens of milliseconds, and about three, 400 milliseconds of quick-fried time of sudden strain of a muscle of hundreds of milliseconds of high density polyethylene (HDPE) powders at least quick-fried time of the sudden strain of a muscle of combustible powder, this device can reach datonation-inhibition purpose fully.
Claims (3)
1, a kind of device that prevents the feed bin detonation, sensor (1) is arranged, this sensor (1) is connected with controller (2), this controller also is connected with actuating unit, it is characterized in that described sensor (1) is a pressure sensor (2), described actuating unit is made up of inhibitor basin (3), cutting valve (4) and shower nozzle (5).
2, device as claimed in claim 1 is characterized in that described cutting valve (a 4) electromagnetic valve in parallel (6).
3, device as claimed in claim 1 is characterized in that being equipped with on the described pipeline normally open solenoid valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01127598 CN1417092A (en) | 2001-11-05 | 2001-11-05 | Fulmination preventer for feeding bin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01127598 CN1417092A (en) | 2001-11-05 | 2001-11-05 | Fulmination preventer for feeding bin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1417092A true CN1417092A (en) | 2003-05-14 |
Family
ID=4667536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01127598 Pending CN1417092A (en) | 2001-11-05 | 2001-11-05 | Fulmination preventer for feeding bin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1417092A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514842A (en) * | 2011-12-16 | 2012-06-27 | 中国石油化工股份有限公司 | Vinyl acetate storage device and emergency treatment method for refined vinyl acetate |
| CN105233775A (en) * | 2015-09-11 | 2016-01-13 | 中国石油化工股份有限公司 | Method for rapidly and uniformly adding diluent and inhibitor during stirring failure |
-
2001
- 2001-11-05 CN CN 01127598 patent/CN1417092A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514842A (en) * | 2011-12-16 | 2012-06-27 | 中国石油化工股份有限公司 | Vinyl acetate storage device and emergency treatment method for refined vinyl acetate |
| CN102514842B (en) * | 2011-12-16 | 2013-10-30 | 中国石油化工股份有限公司 | Emergency treatment method for refined vinyl acetate |
| CN105233775A (en) * | 2015-09-11 | 2016-01-13 | 中国石油化工股份有限公司 | Method for rapidly and uniformly adding diluent and inhibitor during stirring failure |
| CN105233775B (en) * | 2015-09-11 | 2017-07-28 | 中国石油化工股份有限公司青岛安全工程研究院 | It is a kind of to stir the method that Quick uniform adds diluent and inhibitor when failing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |